6*3=x*x+7

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Solution for 6*3=x*x+7 equation: 


Simplifying
6 * 3 = x * x + 7

Multiply 6 * 3
18 = x * x + 7

Multiply x * x
18 = x2 + 7

Reorder the terms:
18 = 7 + x2

Solving
18 = 7 + x2

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x2' to each side of the equation.
18 + -1x2 = 7 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
18 + -1x2 = 7 + 0
18 + -1x2 = 7

Add '-18' to each side of the equation.
18 + -18 + -1x2 = 7 + -18

Combine like terms: 18 + -18 = 0
0 + -1x2 = 7 + -18
-1x2 = 7 + -18

Combine like terms: 7 + -18 = -11
-1x2 = -11

Divide each side by '-1'.
x2 = 11

Simplifying
x2 = 11

Take the square root of each side:
x = {-3.31662479, 3.31662479}

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